Ellis James Chick, 12, performs a faultless rendition of You Make Me Feel So Young, famously covered by Michael Bublé, in the final round of auditions before next week's live semi-finals.Walliams, Amanda Holden and Alesha Dixon are clearly in awe of the young star's ability, but something seems to be troubling Simon Cowell...Britain's Got More Talent presenter Stephen Mulhern spoke to This Morning's Eamonn and Ruth on Friday and praised Ellis' charm on stage.He said: "You know when you see someone so young and you think: "Where do you get this confidence from?" he is like a young David Walliams."He is an amazing young boy as well, which makes it even nicer because sometimes with some of the kids they will have pushy mums and stuff - he doesn't have that."Meanwhile viewers who remember last year's flamboyant semi-finalist, '80s obsessed, king of the keytar Maarty Broekman, are in for a treat as he has recorded a new track for this year's show.Maarty wrote 'Talent On the Telly' in support of 2014's acts and he has shared his work with the public.You lucky people...Catch Britain's Got Talent on Sunday 25 May on UTV from 7pm.